Arkansas State Parks Trip Ideas Filter Park Hobbs State Park Conservation Area [X] Devil's Den [X] Delta Heritage Trail Region Northwest Lower Delta Article: Park Activity Mountain Biking Road Cycling Article: Trail Type Day Hikes [X] Mountain Biking Article: Trail Difficulty Author Meg Matthews Joe Jacobs Monika Rued Date Published August 2017 November 2016 Delta Heritage Trail Development at Arkansas City Aug 01, 2017 ⁄ Meg Matthews Construction of a new trailhead facility at Delta Heritage Trail in Arkansas City will convert trail tracks to pedestrian and bicycle routes, which will stretch from six miles. Video Blog: Mountain Biking…Squirrel! Nov 01, 2016 ⁄ Meg Matthews The popularity of mountain biking has exploded in Arkansas. With mild fall temperatures and beautiful autumn color, now is the time to get on your bike and ride. A Sacred Place – The Fossil Flats Mountain Bike Trail Nov 01, 2016 ⁄ Joe Jacobs Fossil Flats is a six mile trail tucked away in Devil's Den State Park that is home to the Arkansas Mountain Bike Championships and Ozark Mountain Bike Festival . Arkansas State Park IMBA World Summit Bookend Rides Nov 01, 2016 ⁄ Monika Rued Arkansas State Parks has been involved in mountain biking since the 1980s and still have a variety of rides, competitions, trails and bike shops.